Material compressor



Jan. 13, 1931 R. B. COLEMAN ET AL 1,738,791

- MATEfiIAL COMPRESSOR Filed April 24. 1928 3 sheetsrsheet 1 Jan. 13, 1931. R. a. COLEMAN ETAL 1,733,791

' MATERIAL COMPRESSOR Filed April 24, 1928 s Sheets-Sheet 2 54 5 1 (:3) I g? TORS a W mWM A ORN Y1 Jan. 13, .1931. R. B. COLEMAN ET AL 1,788,791

MATERIAL COMPRESSOR Filed April 24, 1928 3 Sheets-Sheet 3 53 Ill l IgVgNTQRS' BY Figure, 3 is a-side elevation of-a portion ofthe mechanism, taken on line 3 and showing the camwhich operates the switches Patented Jan. 13;, 1931 onnier B. connmnn, AND WIL IA R. mmmw; or nosnnennns; oAL1ronnIn,'As-

srenons TO nr-rnonnors FUEL MACHENE 00., or nosnnennns; CALIFORNIA MATnRIAL coirrnnsson.

7 Application filecl April 24,

Our invention relates to material oompressors of the general type shown and dei scribed in Letters Patent No. 12605514 of file/larch 26, "1918, and Letters Patent No.

' and discharged foruse asfuel, the feeding;

compressing, tyinlg'and releasingor discharging allheing done automatically.

The present invention has to do more particularly with improved mechanism for operating theineohanical'elements which hold the compressed material at the lower end thereofywhich break off that portion to he formed into the briquettes or block, which operate the wire tying means andwhich re lease the formed hriquette from the machine. "'Inthis machine we have provided-aplu rality ofrev-olving cams which intermittently operate'the various inechenicaldev ces to 'cause'them' to :perform th'eir respective I functions thus making for greater accureey Figure '1 is a side elevation of the lower 1 the grooves. or 'runwa In order to explainour invention, wehave shown on the accompanying three sheets of Y in the operation of the machine.

drawings such lnechanlsmasis involved in em present case and which embodiesour invention, WVlllCll-WG Wlll now describe.

portion of a compressing machine, in which our invention is emho'di'ed;- -Figure 2is-a's1deelevat1on takenon line which control the wire twisting'firneans Figure 4; is afraglnentary Vertical sectional Fi 'nre' 5fis aplan View of the tablehavin'g i for the pins of the wire twisting Ineans, showing the switches operated by the-earn for guiding said pins fronit-he outer to the inner grooves, said View i v oemgv taken on line 5-:5 oi 1 1g. 3. V or I Referring now more in detail to the drawings; we will describe; that portion of; the

' 'Atthelower end of-the 192s. sensin 272,418. i

mechanisin which hasto dowith our invention;

The material to be compressed is; 'fed downwardly through a feed pipe, or chute 10,-connected with a hopper-likel body 11,'in

-which is'arevolving feeder 12,021 a shaft '13, driven by beveledxgears l l andx'lo, sprocket gears 16 and 17, connected with sprocket ch'aine18, on shaft .19; The oper% ation of this feeder 12 is timed to make a sweep of'lnaterial from one side ofthe hopper body 11, over to the'path of the vertical plunger 20, each time said plunger is raised,

whereby said'plunger forces said material down into the forming (116 21, suspend-ed frointhe main frame member aa'ofrhe ma: ch ne. The means for operatingthe plunger 15; not shown, as t 'forrnsjno} partof the present inventiomhut the lowerendo' f saidplunger is shown, and the feeder is indicated in Figs. 1 and 2,'and this mechaniSmEOPerates to definitel-yand certainly supply a quantity ofinaterial jto the die, as" will be clearfr'oin said showing.

dieZl, wherethe fGIfHlBdOI'COIIiPIGSSGCl material emerges, are oppositely disposed bearing shoes 23, pivotally' mounted" on a bracket 24; for each,

With springs 25jfor' yieldingly hearing u so I against the lower end of the protruding co1npressed material to hold it together as it forced downwardly vloy the inte mittent strokes of the'plunger 20 above; A wire 26 is extended through the die 21, one at each side and down under the lowerend e f-the formed inaterialywith'their meeting ends twisted together at-the lower end ofr-"the I compressed material, and as the hriquette is formed said wires are brought togetli'er ,ahoveethelength of the compressedmate twisted and cut. This'rnechanisin and operation isfully illustratedand descriloedin the ee rial broken off to form the briquette and plieation'. lfSai'd wires extend around the hriquette longitudinallyand are drawn in as the material is forced: downwardly. 1 [As -theocompressed"material is thus Com:

Jon

' as at 29 and 30, with their lower ends, 27

and'28 extended downwardly and having connected thereto two links, 31 and 32, the other ends of which links are pivotally connected to a rocker plate 33, pivotally mounted, as at 34, to the lower end of a bracket 35,

"secured to a vertically movable support 36,

formed as a part of a vertical bar37, moving in two guides 38 and 39, and provided with two vertically spaced rollers, as 40 and 41, adapted to be engaged and raised and lowered by means of a cam 42, on a main cam shaft, designated 19.

At the opposite side of said projecting support 36, is a second bar or member, 43, Fig. 4, to which the opposite sides of said jaws 27 and 28 are pivotally connected, as at 29 and 30, thus said jaws are each supported-pivotally at opposite sides. The supporting bracket 35, Fig. 2, in order to give the necessary space for the jaws to operate between said bracket and the other support ing member '43, at the opposite side, is bent outwardly to an angle, as at 35, while the member 43 projects straight from said support 36, on the reciprocating vertical bar use 3,7. Said member 43 and said bracket 35 are secured to said support 36, by two bolts,

of the links 31 and 32, and the rocker .plate 33 in thefollowing manner: To the upper end of said rocker plate 33 is connected an operating bar 45, the opposite end of which arm is extended through the lower end of a member 46, with a coiled spring 47 between said member 46 and a collar 47, on said bar 45.; and a second collar 48 on the outer end of said bar 45, having its contact face rounded, as at 48'. V

- The member 46, has an outwardly projecting loop portion 46 around the cam shaft 19, with two cam rollers 49 and 50. mounted. thereon at the opposite ends of saidloop portion 46, with a cam 51', on the camshaft 19, operating between said cam rollers and operating tomove said-member 46, and the operating bar 45 horizontally and I intermittently, as will be clear from Fig.2. A guide bar 52, is connected to the upper end of the member 46, and this -moves through a guide bracket 53, for'holding the parts steady and in alinenie'nt, inasmuch as the bar 45 will. have a. varied movement as the rocker plate 33 rocks on its pivotal support 34. Thus by'the operation of thecam.

51, on the main cam shaft 19, the jaws 27 and These jaws for biting off the material is old inthe patents referred to, but the improved means for operating them with revolving cams is new and has greatly increased the accuracy and efficiency of the machine.

The down position of said jaws 27 and 28, after they have been closed in on the pros truding material from the die 21, is below the table, designated 54,- at which level the tying of the wires is done, after the briquette has been bitten off and pulled down, the wires being pulled down with it. The wires are twisted by the revolving of the table, as fully described in the patents referred to. The

tying elements are moved in to the wires while:

they are revolving and. after the wires are twisted they are moved outwardly again. This action is accomplished by concentric grooves 55 and 56,shown in the plan View, Fig. 5, and it is the new means for operating the switch elements 57 and 58, for changing the positions of the tying elements that forms part of the present invention. -The present invention makes it possible to operate these switch elements by a cam on the main cam shaft, as in the other operations hereinbefore described. 1 i i A yoke 59, Figs. 3 and 5, is connected to simultaneously move the switch elements 57 and 58, to the three positions indicated in full lines and light broken lines, Fig. 5, said yoke having a stem or operating rod 59, connected to an operating member 60, Fig. 3, having a loop 61 therein through which the main cam shaft 19-extends. ()n said operating member 'is a cam roller 62, positioned to run in an internal cam 63, said cam having a bulge 63 at one side thereof, which operates as said cam is revolved to move said member 60, and said yoke 59 to an extreme position, whereby to move the switch members 57 and58 outwardly, while the concentric portion of said internal cam 63 moves said switch elements to, neutral position, shown in full lines, Fig. 5, and an indent 63* in said internal cam 63operates to move said yoke outwardly, and thereby move said switch elements to the other extreme position,'shown in light broken lines. \Ve do not show the wire twisting and cutting mech- 7 patents referred to, we have only shown that which we consider a part of the present inventlon, namely the revolvmg cams for operating the various mechanisms herein described, for it will be seen from the forego-- ing description and the showing on the drawings, that with a single cam shaft, with three revolving cams thereon, we are. able to oper-. ate the biting jaws'27 andl28, tobite the material and to pull it down,and to control the switch elements whichin turn control the wire twisting means shown in the patents referred to. This makes it possible to proper- 1y time thevarious operations and to make them positive and efficient.

The main cam shaft 19 is provided w1th a clutch 64, moved by means of a lever 65,

into and out of driving engagementwith a' clutch element 66, connected with a drive gear 67, and meshing with a pinion not shown but driven through a sprocket chain 68,"from the main driving mechanism above, a portiononly of a large gear 69 being shown. It is not deemed necessary to show more of tlDS mechanism, as it forms no part ofthe present invention and is only referred to as it s related to the main cam shaft 19.

' Thus we have provided a main cam shaft with a series of operating cams 42, 63 and 51, thereon and operated thereby for operatmg the aws 27 and 28 up and down, closing and I op'eningsaid jaws to bite the material from the main stick being forced through thedie, and for controlling the switch elements 57 and 58, which in turn control the wire twist- ,ing' and cutting mechanism, the movement of the switch elements, however, being the scriptive purposes, except as we may be limited by the hereto appended claims.

Weclaim; 1 1. In a compressing machine of the character referred to, having, a die and plunger adapted to be operated to 'force'material' into a 5 and through-said die, a pair of jaws mounted to be moved vertically and. to be opened and closed upon material protruding from said tobite into said material, a feeder for .feeddie, the combination of a main cam shaft, a cam operated by said shaft for raising and lowering said jaws intermittently, a cam on said shaft for opening'and closing said jaws ing material intermittently to said die, and

- operating connections .fromsaid cam shaft for operating said feeder, whereby'said seV-' eral mechanisms are 'operatedin-,-synchronismu- 2. In a compressing machine of the character referred-to, havinga die and plunger adapted to be'operated to force material into and through said die; andtyingmeans for tying said material, a' feeder for intermittently feeding-:material'to 'sa' id die, a pair of jaws -pivotally mounted, and movable verticallybodily at .opposite sides of saidmaterial; as; it vis 1 forced from said die, the .combinationofa main cam shaft, a cam operated: by said.,shaft-,ca]cam operated by said shaft:- for 7 raising and" -lowering said jaws,

a cam1roperated by said shaft for opening:

and closing said jaws to "bite into said material and to? pull. it zi-wayfromv said die as said jaws are. moved downwardly bodily, a cam on-'said shaft for controlling the tying mechanism, and operating means from said shaft for operating said feeder. 3. In a material: compressing machine, having apair of jaws movably mounted to open and closenpon material com-pressed, said jaws being'mountedto be'movedr vertically, the combination of acamshaftyaires volving camon said shaftfor raising and synchronism to closesaidivjawsupon said lowering said jaws, acamon saidshaft for J opening and closlngsaid aws to bite into sa d, materlal,.said cams belng operable n compressed material and to move thenr downwardly thereafter, whereby to pull a part of said: material with them. i V Y A. In .a material. compressing machine, having a-pair of jaws at opposite sides of the path of the compressed. mate-rial, means for supporting "said jaws :pivotally, said means being movable vertically, the combination of a cam shaft, acam on said" shaft for raising and'floweringi said supporting means and; said jaws, a cam on said shaft for opening and closing said jaws to'bit'e into materialii'compressed' and protruding therebetween, whereby said jaws are auto-f matically operated to bite into said material and to pull it down with them as-they are moved downwardly. 1

5. In a material compressing -machine,

into said die, a feeder for intermittently feeding material to said die,a pair of jaws in alinement' with said die to receive materialincompressed form from said die, said jaws being movably mounted to open and; I close upon 'material protruding from saiddie, said jawsb'eing movable vertically to jaws and for opening and closing themjin synchronism, whereby to bite into material protruding from said die and to pull it downwardly as they. are moved bodily, and. operating connections from said shaft for and from said die,*.the combination of a cam shaft for operating said jaws, said cam shaft having cams forfraising and lowering said p having a die, a plunger for forcing material .11

operating 'said'feeder in synchronisni with the movement of said material through said 6. In a material compressing machine,

haviii V a die a" lun er'for' forcin 'material into said die, a feeder for intermittently feeding material to said die,a pair of jaws in 'alinement with said die to receive material in compressedformfrom said die, supportin'glmeans for said jaws, pivotal mountings for said jaws thereon, means for raising and'lowering'said supporting'means to raise and lower said jaws therewith, and means operating in synchronism therewith to open and close said jaws upon material compressed through said die and to pull it downwardly as said jaws are moved bodily downwardly following their closing movement, and means for operating ating means.

7. In a material compressing machine, having a die, a'plungerioperable vertically therein'to compress material in said die, a hopper-like body around said plunger and the mouth of said die, a feeder revolubly mountedithereinat one side of 'said'plunger and operable-to intermittently, with each revolution, to sweep material to the mouth of said die, apair of jaws pivotally and movably mounted at opposite sides of the path of'niaterial'forced from said die, the

combination of a cam shaft, a cam thereon V for operating said jaws on their pivots to bite into said material, a cam on said shaft for raising and lowering said jaws 1n syn- ClllOIllSlD. with their biting action, and means from said cam shaft for operating said feeder insynchronisin with the plunger movement 'into said die for forcing said material therethrough. v V V Signed at Los Angeles, Los Angeles County, California, this 16th day of March,

.ROBERT B. COLEMAN.

VJILLIAM R. HAMILTON.'

said feeder from said jaw oper- 

